Yes the risers are money well spent IMO, I would buy again for another set. Robert from Magnarisers is a nice guys and takes a lot of pride in his product which shows
I got my LRS pre covid, but they still took a while. As far as break in I cant not say I have heard much difference from when I have them until now, except for the risers changing things up a bit (for the better).
I have some future experiments / designs I want to try with Maggies: Mounting them to the wall, with the ability to rotate in 3 axis to suit my odd room and space